High-quality diamond drill bits: With very hard and extremely hard diamonds, the diamond drill bit ensures professional, clean, and fast drilling. Thanks to high-quality industrial diamonds, the tile drill bit has a fast cutting speed. Waterless drilling: Diamond tile drill bit for efficient and clean drilling. Filled with cooling wax, used for cooling and lubrication in the drill, so you can drill holes without adding water, suitable for dry drilling. Wide applications: Perfect for easy drilling in use in boreholes on glass, marble, tiles, fiberglass jars, mable slate, granite (granite drill), ceramic (ceramic drill), hard floor tiles, clinker brick straps, stone slabs, hard tiles. Works with all electric drills and angle grinders. Stable and durable: Diamond drill bit for dry drilling, stable drilling. In addition, it has a long service life thanks to high-quality and temperature-resistant diamonds. Vacuum brazing is the most efficient and precise way to produce diamond tools. This allows us to improve the removal rate and a longer tool life. Item Description: Brand new. Compatible with all drills and angle grinders. The dry diamond drill bit uses vacuum welding technology that allows the dry drill bit to be used at a higher temperature to effortlessly cut hard porcelain tiles, ceramics, marble, and slate. The built-in lubricant helps with cooling and extends tool life, so no additional lubricant is needed. Vacuum welded diamond drill bits, dry drilling of granite and marble, masonry, concrete, tile, ceramic, glass, hard plastic, etc. Built-in lubricant to help with cooling and extend tool life. No additional lubricant is required. Item Specifications: Material: Metal.